Copper is the superior choice for piping because of its resistance to corrosion, durability and structural integrity in comparison to other popular materials, like galvanized steel and CPVC (Chlorinated Polyvinyl Chloride) plastic piping.
There are multiple reasons to switch from inferior materials to copper piping or to replace existing copper lines with new copper when you need repiping performed. Here are some things to consider when it comes to copper repiping for your home.
Why Replace Galvanized Steel Piping With Copper?
Galvanized steel piping is found in many older homes, and it is still used because of its structural strength, relative durability and lower cost than copper. However, galvanized steel piping is also vulnerable to corrosion over time and will eventually rust away from the inside surface to the outside because of constant exposure to water.
This corrosion will lead to eventual pipe failure and contamination of your drinking water. When corrosion builds inside the pipes to a point that only a pinhole is left in the center of pipes through which water can travel, your water pressure becomes significantly diminished.
Toilet tanks, shower walls and sinks will eventually be coated with a rust-colored stain that is difficult to remove as the water dries and sediment remains.
The last and most damaging effect of corrosion is pipe failure. This may present itself as small pinholes in pressurized supply pipes or, in the worst case scenario, a gushing torrent of water that floods the lower level of your home.
While many homeowners may be tempted to replace galvanized piping with the same material to save money on materials and installation, it’s a much better investment to switch to copper and avoid these issues in the future.
Is CPVC Piping a Viable Alternative to Copper?
CPVC piping shares the same resistance to corrosion as copper piping, and it is much less expensive. However, it is also less durable and more susceptible to penetration and other damage when other work is being performed nearby.
It may simply be struck by a heavy or sharp object that is being carried too close to the line of piping — causing significant damage to the pipe. Additionally, while a house fire is unlikely, it would cause major damage to CPVC piping and leave your home without water.
Why Would Copper Piping Need to Be Replaced?
While copper piping is resistant to corrosion, it is not totally immune when the local municipal water supply has high pH and low alkalinity levels. This can lead to pitting, which is the development of small areas of corrosion that can lead to pinhole leaks in cases of severe corrosion.
Before copper repiping is done, a water softening system also should be installed to lower the pH levels sufficiently to avoid future corrosion issues.
Does the Age of Copper Piping Matter?
Copper piping installed before 1986 may be connected with lead-based solder, which can leach lead into drinking water. This was the year that the Safe Drinking Water Act was enacted, mandating that only lead-free solder could be used in future drinking water supply lines.
Ingestion of lead in sufficient quantities can cause significant neurological and physical damage, especially to children and pregnant adults. These effects are permanent and irreversible, so it is imperative that lead-based solders be removed by replacing pre-1986 copper piping.
Lead may also be found in service lines that connect your home to the main municipal supply lines, so you should have a professional plumber check your service line when they install new copper piping.
Does your home need repiping? Contact the experts at
F & M Plumbing
for copper repiping as well as all of your other plumbing needs.